1.25×0.7+1.25×1.2+0.125×81简便运算
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1.25×0.7+1.25×1.2+0.125×81简便运算
1.25×0.7+1.25×1.2+0.125×81简便运算
1.25×0.7+1.25×1.2+0.125×81简便运算
1.25×0.7+1.25×1.2+0.125×81
=1.25×0.7+1.25×1.2+1.25×8.1
=1.25×(0.7+1.2+8.1)
=1.25×10
=12.5
216.675
(0.7十1.2十8.1)X1.25
=12.5
1.25×0.7+1.25×1.2+12.5简便计算递等式
1.25×0.7+1.25×1.2+0.125×81简便运算
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